From 532409aa1ba8b69d5a3dea159d4b1bd9adbd7a46 Mon Sep 17 00:00:00 2001 From: Keerthy Date: Tue, 18 Aug 2015 15:11:15 +0530 Subject: [PATCH] rtc: omap: Add internal clock enabling support The rtc can be clocked by an internal 32K clock. Adding the support to enable the same. Signed-off-by: Keerthy Acked-by: Tony Lindgren Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-omap.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index 8b6355ffaff9..f31c0127dae0 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -25,6 +25,7 @@ #include #include #include +#include /* * The OMAP RTC is a year/month/day/hours/minutes/seconds BCD clock @@ -132,6 +133,7 @@ struct omap_rtc_device_type { struct omap_rtc { struct rtc_device *rtc; void __iomem *base; + struct clk *clk; int irq_alarm; int irq_timer; u8 interrupts_reg; @@ -553,6 +555,11 @@ static int omap_rtc_probe(struct platform_device *pdev) if (rtc->irq_alarm <= 0) return -ENOENT; + rtc->clk = devm_clk_get(&pdev->dev, "int-clk"); + + if (!IS_ERR(rtc->clk)) + clk_prepare_enable(rtc->clk); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); rtc->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(rtc->base)) @@ -681,6 +688,9 @@ static int __exit omap_rtc_remove(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 0); + if (!IS_ERR(rtc->clk)) + clk_disable_unprepare(rtc->clk); + rtc->type->unlock(rtc); /* leave rtc running, but disable irqs */ rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0); -- 2.20.1